Fixed the link thanks!

And a few more for your viewing/reviewing pleasure...

NB S2 = Noise Blocker M12 S2
http://www.youtube.com/watch?v=1GNDu5Fn5bg

NB S3 = Noise Blocker M12 S3 HS
http://www.youtube.com/watch?v=JrYiC9Xq8uw

NB XLP = Noise Blocker XLP
http://www.youtube.com/watch?v=YWU1ptI8J7E

Kflex H = Scythe Kama-Flex S1225FDB12H
http://www.youtube.com/watch?v=MP1pVShKyRk